JPH0124251Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a frame material used for constructing girders on masonry walls of buildings constructed of ceramic blocks, bricks, concrete blocks, etc.

For the above-mentioned girders, a method in which a disposable formwork is used and the formwork is integrated as a part of the gable is described in, for example, Japanese Utility Model Application Publication No. 141622/1983, and is already known. However, the one described in this bulletin consists of a pair of []-shaped formwork frames, which are placed facing each other on a masonry wall with their openings facing inside, and connecting rods, etc. are left in place. They are tightened and fixed together with a separator.

However, in the above-mentioned pair of []-shaped formwork frames, the inner and outer surfaces of the girder are formed symmetrically and with the same finished surface, so for example, it is difficult to make the outer surface have a different finish from the inner surface. in case of,
It is necessary to apply the required exterior separately, and the above]
In the case of a formwork frame, appropriate measures must be taken to straddle another beam indoors.

The present invention aims to eliminate such drawbacks or inconveniences.

The illustrated embodiment will be described below.

1 is a masonry wall of a building constructed with ceramic blocks 2, 3 and 4 are an inner frame plate made of glass fiber reinforced concrete and a ceramic wall installed at the outer edge of the upper end of the masonry wall 1. The outer frame plates are shaped to correspond to the inner and outer surfaces of the girder to be constructed.

The inner frame board 3 has a width of 1000m/m, a height of 320m/m,
With a depth of 300 m/m, a horizontal part 3b formed rearward from the upper end of the vertical part 3a, which is the lower half part, and a vertical part 3c, which is the upper half part formed upward from the rear end, form an L-shape on the side. Locking portions 3d are formed horizontally toward the front at three locations on the lower end edge of the vertical portion 3a, one in the center portion and one on the left and right portions, spaced apart from each other by a required distance.

The locking portion 3d has a plate shape with a trapezoidal base end portion extending into a rectangular shape, and through holes 5, 6 are formed at the front end portion and the base end portion.

The outer frame board 4 is made of ceramic, and has a width of 154 m/m and a height of 320 m.
m/m, thickness 25m/m, in the form of a straight plate, the upper end is bent diagonally to the back side, and dovetail grooves 7 and 8 are formed in two places on the upper and lower parts of the back side, parallel to each other, across the left and right edges. A locking portion 9 is provided horizontally protruding from the lower end portion of the back surface.

The locking part 9 has a groove 1 having a rectangular cross section over the entire length of the upper surface.
0 is formed, and through holes 11, 11 are formed on both sides thereof.

Reference numerals 12 and 13 denote connecting fittings for connecting the outer frame plates 4. The connecting fitting 12 is a metal plate bent into a handle shape that fits tightly into the dovetail grooves 7 and 8.
A side portion of the metal plate is bent into an L-shaped cross section to form a fitting portion 13a that tightly fits into the groove 10 of the locking portion 9, and a continuous abutment portion 13b is connected to the locking portion 9. It comes close to the back side of the.

Reference numeral 14 denotes a base plate made of glass fiber reinforced concrete on which the outer frame plate 4 is placed, and the locking portion 3d of the inner frame plate 3
It has a horizontally slender rectangular shape with a length that fits closely between them, and a pair of through holes 15, 15 are formed in the center portion.

Therefore, in order to construct a girder at the upper end of the masonry wall 1 using the inner and outer frame plates 3 and 4, first place three inner frame plates 3 on the upper end of the masonry wall 1. The required number (1 piece) is 1 piece for every 2 ceramic blocks.
The locking parts 3d are arranged adjacent to each other and are perpendicular to the longitudinal direction of the upper end at the center of the upper end of each ceramic block 2, with their tips facing the outer edge of the upper end of the ceramic block 2 and their base ends inside the upper end. Vertical reinforcing bars 16 that match the edges and protrude from the upper end of the masonry wall 1 are positioned between the locking parts 3d. In the above, bolts 17 and 18, which are set in advance at corresponding locations, are inserted into the through holes 5 and 6 of each locking portion 3d of each ceramic block 2, and the through holes 6
Each inner frame plate 3 is fixed by tightening a nut 19 onto a bolt 18 inserted through the inner frame plate (Fig. 1).

Next, reinforcing bars 20 for girders are placed above the horizontal portions 3b and locking portions 3d of each inner frame plate 3 arranged in a row at the upper end of the masonry wall 1, and the required portions and vertical reinforcing bars are 16 (Fig. 6).

After that, the base plate 14 is fitted and placed between the locking portions 3d on the outer side of the upper end of the masonry wall body 1, and the upper surface thereof is aligned with the upper surface of the locking portion 3d, and the through holes 15, Bolts 21, 21 installed in advance at locations corresponding to 15 are inserted into the through holes 15, 15.

After that, six outer frame plates 4 are attached to each inner frame plate 3.
The intervals between the outer frame plates 4 (13
m/m).

That is, the outer frame plate 4 has its locking part 9 mounted on the tip of the locking part 3d of the inner frame plate 3 and the base plate 14, and the bolts inserted into the through holes 11, 11 of the locking part 9. 17 and 21 to fix the nuts 22 upright, and the connecting fittings 12 and 12 are fitted to the adjacent ends of the dovetail grooves 7 and 8 of each outer frame plate 4 to bridge the grooves 10 and 17. , 10, the fitting portions 13a of the connecting fittings 13 are tightly fitted and straddled, and the abutting portions 13b are brought into close contact with the back surface of the locking portions 9, whereby each outer frame Connect the plates 4 (Figures 5 and 6).

Then, the temporary fixing plate 23 with both ends bent at right angles is straddled between the required portions of the outer frame plate 4 and the upper ends of the inner frame plates 3, and the bent portions of both ends are engaged with the upper ends thereof. , the upper portions of the outer frame plates 3 and 4 are locked so that they do not open, forming a formwork B having a cavity A having a substantially horizontal L-shaped cross section (FIGS. 6 and 8).

Concrete 25 was first poured into the a'' portion of the upper a' portion and the lower a'' portion of the horizontal portion 3b of the void A (dashed line 24 in Figure 6), and the concrete 25 was allowed to harden to some extent. Afterwards (4 to 6 hours later), concrete 25 is placed in the a' section, and these a',
After the concrete 25 in the a'' portion has hardened, the temporary retaining plate 23 is removed (Figures 6 and 7).

Note that joint mortar is applied to the gaps between the outer frame plates 4 after the concrete 25 has hardened.

In this way, the girder 26 is constructed, and the outer frame plates 3 and 4 of the formwork B are covered with the reinforced concrete layer 2.
5, and as it hardens, it becomes one with this gable 2.
Ceramic blocks 27 are laminated on the outer half of the upper surface of the girder 26 (the left half in FIG. 7) to construct the walls of the upper floor, and the inner half of the upper surface There is a beam 28 in the section (right half of the figure).
Place.

It is clear that the shape and dimensions of the outer frame plate are not limited to those shown in the above embodiments, but may be any shape and size that corresponds to the shape and dimension of the girder to be constructed.

Since the present invention has the above configuration, it has the following effects.

Each locking part 3d on the lower edge of the inner frame plate 3 is attached to the upper end of the masonry wall 1, and bolts 17 and 18 are inserted into the through holes 5 and 6 of the masonry wall 1 in advance. The base plate 14 is placed between each of the locking portions 3d flush with the locking portions 3d, and the bolts 21 installed in the masonry wall body 1 are inserted in advance into the through holes 15. , further, the plurality of outer frame plates 4 are attached to the bolts 17, 2.
1 is inserted into the through hole 11 and mounted on the tip of the locking part 3d of the inner frame plate 3 and the base plate 14, and the bolts are tightened with appropriate nuts, and the outer frame plates 4 are connected to each other. By tightly fitting and spanning the connecting fittings 12 and 13 to the adjacent ends of the dovetail grooves 7 and 8 and the groove 10, the required formwork can be easily and quickly assembled. By integrating the frame with the concrete poured into it, the desired girder can be constructed.

In addition, on the outside half of the upper surface of the girder (left half in Figure 7), the required blocks were stacked to construct the wall for the upper floor, and on the inside half of the upper surface (right half in Figure 7). Beams can be placed on it.

In addition, the outer surface of the constructed girder is decorated with a ceramic outer frame board in the same way as tiling, so there is no need to separately perform conventional tiling work.
In addition to being economical, the concrete bites into the connecting grooves on the back side of each outer frame plate, and they are connected to each other by connecting fittings that fit into the grooves, making them strongly integrated with the concrete and extremely durable. expensive.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention. Figure 1 is a perspective view showing the inner frame plate installed at the upper end of the masonry wall, and Figures 2 and 3 are side and back views of the outer frame plate. , Figures 4A and 4B are perspective views of the connecting fittings, Figure 5 is a back view of the main parts showing the state in which the outer frame plates are connected,
Figure 6 is a side view showing the reinforcing bars for the girder placed in the formwork, Figure 7 is a sectional view showing the girder constructed, and Figure 8 is the masonry wall structure. It is a perspective view showing a state where an inner frame plate and an outer frame plate are established at the upper end. 1... Masonry wall body, 3d, 9... Locking part, 3...
...Inner frame plate, 7, 8, 10... Connection groove, 4...
...Outer frame board.

Claims (1)

[Claims for Utility Model Registration] A horizontal part 3b formed rearward from the upper end of the vertical part 3a, which is the lower half part, and a vertical part 3c, which is the upper half part, formed upward from the rear end, form an L-shape on the side. At the same time, a plurality of plate-shaped locking portions 3 are mounted on the upper end of the masonry wall 1 on the lower edge of the vertical portion 3a.
d are formed horizontally at a required interval from each other, and the tip and base end portions of each of the locking portions 3d are provided with through holes 5 through which the bolts 17 and 18 of the masonry wall 1 are inserted. . The plurality of locking portions 3d of the inner frame plate 3 on the outer side portion
A base plate 1 to be mounted flush with them between each of the
4, dovetail grooves 7 and 8 are formed in parallel on the upper and lower sides of the back surface, and the lower end portion of the back surface has a groove 10 and a through hole 11 through which the bolts 17 and 21 are inserted, and an inner frame plate 3 A plurality of ceramic outer frame plates 4 each having a distal end of a locking part 3d and a locking part 9 projecting horizontally on a base plate 14; dovetail grooves 7, 8 of each outer frame plate 4; A plurality of connecting fittings 12 and 13 that tightly fit and span adjacent ends of the groove 10
A frame material for girders characterized by comprising: and .